Temperature monitoring system telegram issue

sir can you please guide me …i am not able to get alert on telegram though i feel my code is right !
here are the pictures of my codebolt1|498x500

Hi @rolikagupta2001,

I looked into your query and also seen the photo which you attached.But I suggest you to go through this link which has similar query to yours, about telegram project.:Telegram Project error:Bad request: chat not found

Do let me know if you need further assistance.

Can you share the output of the code?